Primer for internal-combustion engines.



G. F. FISCHER.

PRIMER FOR INTERNAL COMBUSTION ENGINES, APPLICATION FILED JAN. 10, 1913.

1,07 1 ,O3 8, Patented Aug. 26, 1913.

OFFICE. A

GEORGE E. rrscnnn, or nlnwnnx, NEW JERSEY,

PRIMER FOB INTERNAL-COMBUSTION ENGI NES.

Specification of Letters'latent.

Patented Aug. 26.1913.

Application filed JanuarylO, 1913. Serial No- 741,15

ToaZZ whom it may concern:

,Be-it known that I, GEORGE F. Freeman, a citizen of the Uni-tedStates, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new anduseful Improvements in Primers for lnternal Combustion Engines; and I do v clear,.and exact description of theinvent-ion,

such as will enable others skilledin the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to figures of reference marked thereon, which for-In a part of this;

This invention relates to a priming device which is adapted for use in connection with internal combustion engines and is designed to prime the engine or its inlet pipe between the carbureter and the cylinder so as to assist in starting, particularly in cold weather when the fuel is heavy and will not rise through the needle-valve into the engine to permit its being started. It is usual for automobile operators,"when this occurs, to raise the hood and prime by means of pet cocks, and sometimes interfere with the adjustment of the carbureter, which besides being laborious, takes up considerable time.

My invention removes the necessity of raising the hood, since it is preferably ar-" ranged on the dashboard of the automobile and communicates-with the manifold or inlet pipe o the engine, the primer acting to feed gasoiene when desired through a pipe' into the manifold pipe or inlet pipe of the engine. .Besides this the valve has another function, and that is to act as an air inlet to feed air to the pipe above the carbureter which isldesirable after an engine has become heated and is running well, under which conditions the fuel can be cut down by reason of having niore air admitted above the carbureter.

The invention further consists in providing the primer with an indicator showing when the fuel feeding means is operative, and when and to what extent the air feeding. means is operating.

The invention is illustrated in the accompanying drawing, in which- Flgure 1 is a front view of the improved primer, and Fig. 2 is. a vertical section through the center of Fig. but with, the

indicatorend of tion. Fig. 3 is part of the valve Fig. 4 is adetai-l fuel receptacle showing the valve shown i elevaa section of -the"bottom on line X X in Fig. 2.

the arrangement of a vent when desired. Fig. 5 is aview show.-. hereby declare the following to be a full,

mg the manner of attaching the device to an automobile and its connection with the engine. a

In the drawing: I show an automobile engine 10 with a manifold or inlet pipe lland a carbu1:eter ;12, [these being of any type. I prefer t'o arrange .the primer on the dashboard'13 theautomobile.

The primer consists'of a casing 14 which is reduced as at 15 so as to form a shoulder 16 which,"when the portion 15 isfpassed through the dashboard, fits against the dashboard atone side, and a nut 17 screws up on the outside of the casing and against the dashboard to clamp the casing in place. Mounted on the casing is a fuelreceptacle 18 provided with an outlet 19 communicating with a fuel inlet 20 of the casing 14:. The casing has an outlet 21 and between the outlet 21 and the fuel inlet 20 is an air inlet 22, the air inlet usually consisting of a series of openings into the casing as shown more particularly in Fig. 5. Adjacent to the inlet 22 is a shoulder 23 which seat against which the end of the valve 24 can be seated to close the air inlet-22 against.

communication" with the outlet 21. The valve 24.- hasa screw-threaded portion rotating in a screw-threaded portion of the casing as at, 25 so that as the valve is rotated it is either moved toward or from the valveseat 23, as will be understood. The. valve ias a duct 26 therein which opens on' one end toward the outlet 21, and at its other end, as at2 7,- passes to the side of the valve and preferably radially so that the duct can be placed in communication with the-fuel inlet 20, as shown more particularly in Figs. 2 and 3. leakage of fuel between the valve and the casing. I also place a friction pin 29 and a spring 30 so as to bear against the flange 31 and hold the valve against rattle and also accidental rotation .by the jolting of the car. The flange 31 is providedwith a handle 32 by meansof acts as a valve which thevalve can be roof the top portion of the Suitable packing 28 prevents the i tated. On the flange 31 I arrange an indicating scale 33 which preferably consists of intermediate marks in the form of a dial and with indentifying characters thereon in the shape of numbers and the like which are adapted to be placed in register with the mark 34 of the casing. The usualj tvay; of marking is to mark 34 when the valve is turned so that the duct 26-27 of the valve is in line with the fuel inlet 20 to permit the feeding of fuel from the receptacle through the valve into the outlet 21. The outlet 21 is connected by a pipe 35 with the manifold or inlet pipe 11 of the engine.

The operation of the device is as follows: The valve is rotated so that the duct 26-27 of the valve is not in communication with the fuel i let, that is, the valve closes the fuel inlet, and when it is in this position, the receptacle 18 is supplied with fuel and the lid 36 is screwed on the receptacle, and the fuel can thus be carried safely without leakage or loss until it is needed. When it is necessary to start the car and the engine needs priming, it is not necessary to raise the hood, and particularly in the case of self-starters it is not necessary to leave the seat, since the valve is then turned to bring the 0 to the mark 34, which moves the'duct 26-27 so that it communicates with the fuel inlet 20 and some of the fuel "runs down through the outlet 19 and the fuel inlet 20 through the duct 2726 out of the outlet 21 and through the pipe 35 into the manifold or inlet pipe 11, and thus primes the pipe above the carbureter. \Vhen the operator has fed sufficient fuel from the receptacle 18, a slight side movement of the valve will again close the fuel inlet, and when the engine is turned over there is sufiicient fuel in the manifold to charge the cylinder or cylinders of the engine, irrespective of the operation of the earbureter.

When the engine has been running-and it is desired to feed more air, the valve can be used as a regulator for controlling the admission of air to the manifold, in addition.

to the air supplied through the carbureter. In the type shown in the drawing, by moving the valve to the higher numerals, the valve is moved on the screw-threaded portion 25 so that the end of the valve is moved away from the valve-seat 23 and air passes in through the inlet or inlets 22 and through the pipe 35 into the manifold, .it being understood that the fuel supply from the receptacle 18 is cut off while the air inlets are open, since the movement ofthe valve to open the air inlet, of necessity closes the fuel inlet so that the valve alternately closes one or the other of these inlets, that is, when the fuel inlet is shut, the air inlet is open, and when the air inlet is shut, the fuel inlet is open.

place the 0 in line with If it is necessary to provide a vent for the receptacle 18, I may do so by the construction shown in Fig. 4, in which case I provide the receptacle 18 with a vent 37 which is so disposed that it is closed by the screwthreaded end 38 of the lid 36 when the lid is screwed tightly shut, but a slight unscrewiiig of the lid raises the portion 38 so as to partly or entirely uncover the vent 37.

Having thus described my invention, what I claim is 1. A primer for internal combustion engines consisting of acasing having an air inlet and a fuel inlet, a fuel receptacle communicating with the fuel inlet, theeasing having an outlet common to both inlets, and a valve moving in the casing and acting to cover the air inlet to close it, the valve having a duct with one end of the duct opening into the casing toward the outlet, the other end of the duct being so arranged that it can be placed in register with the fuel inlet.

2. A primer for internal combustion engmes consisting of a casing having an air ,inlet and a fuel inlet, a fuel receptacle communicating with the fuel inlet, the casinghaving an outlet common to both inlets, a

valve moving in the casing and acting to cover the air inlet to close it, the valve havinga duct with one end of the duct opening into the casing toward the outlet, theother end of the duct being so arranged that it can be placed in register with the fuel inlet, and an indicator on the valve for showing the position of the valve.

3. A primer for internal combustion engines consisting of acasing having an outletat one end, a receptacle having an air inlet adjacent to the outletand having a shoulder to form a valve-seat adjacent to the air inlet, the casing also having a fuel inlet, a fuel receptacle mounted on the casing and communicating with the fuel inlet, a valve in the casing and adapted tohave one end seated against the seat adjacent to the air inlet, the valve moving longitudinally in the casing so that it can uncover the air inlet, the valve having a duct, said duct passing from the end adjacent to the outlet of the casing and extending to the side of the valve and adapted to be placed in register with the fuel inlet, and a handle on the end of the valve for its manipulation.

4. A primer for internal combustion engines comprising a casing, the casing having an outlet on one end, the casing having a fuel inlet and having an air inlet between the fuel inlet and the outlet, the inside of the casing having a screw-threaded portion, a valve screw-threaded to fit in the screw threaded portion of the casing, the casing adjacent to the air inlet being formed into a seat to receive the end of the valve to close the air inlet, the valve having a duct extending from its end toward the outlet whereby the ductis thrown into and out of register In testimony, that I claim the foregoing, I

with the fuel inlet; according to the rotation have hereunto set my hand this 7th day of of't'he valve, a handle on't-he valve project- January, 1913.

'l'ng from the casing to 'provide for the GEORGE F. FISCHER. 5 manipulation of the valve, and a fuel recep- Witnesses:

tae'le mounted on thefcasmg and communi- 7M. H. CAMAFIELDI, eating with the fuel inlet. M. A. J OHNSON. 

